The steering on my old boat is getting kinda hard to turn lately especially on a twisty river. I was told that you could take it to a boat shop and they had a machine that pushed lube into the steering cable to loosen it up. I went to my local boat dealership and ask them about this and they just looked at me strange. They said there was no such thing and they just replace the steering cable when it gets this way. What is the real scoop can this be lubed somehow or does it just need to be replaced?